Finding the Fourth Proportional to 111,185.99, 153,434.82 and 60,198.31

Step by Step Solution

1. Step 1: Write the proportion equation
   111,185.99 : 153,434.82 = 60,198.31 : x
2. Step 2: Convert to fraction form
   111,185.99/153,434.82 = 60,198.31/x
3. Step 3: Cross multiply
   111,185.99x = 153,434.82 × 60,198.31
4. Step 4: Simplify right side
   111,185.99x = 9,236,516,859.15
5. Step 5: Solve for x
   x = 9,236,516,859.15/111,185.99
6. Step 6: Final answer
   x = 83,072.67